Allocating many 'net_device's (virtual interfaces) - Embedded

This is a discussion on Allocating many 'net_device's (virtual interfaces) - Embedded ; Dear all,
I wish to allocate many (ten of thousands) 'net_device's, for a
virtual interfaces application
I'm looking for references this capability.
-. I know vconfig target ~4K interfaces
I need/wish many more
Best regards
++Tal...